////
//
/// \file ./test/if_statement_node_test.cpp
//
//  Copyright 2007, 2008 Chandler Carruth
//
//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
//  use this file except in compliance with the License.  You may obtain a copy
//  of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
//  License for the specific language governing permissions and limitations
//  under the License.
//
////

#include <inc/parser/if_statement_node.hpp>

#include <inttypes.h>
#include <string>

#include <gtest/gtest.h>

#include <inc/parser/utilities.hpp>

namespace inc {
namespace parser {

using std::string;

TEST(IfStatementNodeTest, parse_basic)
{
  const string data[] = { "if x then foo()\n", "if (x = y) then x := z\n",
                          "if x\n  then bar()\n",
                          "if (not (x and y))\n  then z := (x + y)\n" };
  for( int i = 0 ; i < elementsof( data ) ; ++i )
  {
    IfStatementNode node;
    string::const_iterator last_parsed;
    EXPECT_TRUE( node.parse( data[i].begin(), data[i].end(), last_parsed ) )
        << "Failed to parse: '" << data[i] << "'";
    EXPECT_EQ( data[i], string( data[i].begin(), last_parsed ) );
    EXPECT_EQ( data[i], node.get_text() );
    EXPECT_TRUE( node.get_expression() != NULL )
        << "Failed to parse the expr: '" << data[i] << "'";
    EXPECT_TRUE( node.get_statement() != NULL )
        << "Failed to parse the stmt: '" << data[i] << "'";
  }
}

TEST(IfStatementNodeTest, parse_fails)
{
  const string data[] = { "if x then foo()", "if x + y then foo()\n",
                          "if (x + y)\n foo()\n", "ifx y then foo()\n",
                          "if x ythen foo()\n" };
  for( int i = 0 ; i < elementsof( data ) ; ++i )
  {
    IfStatementNode node;
    string::const_iterator last_parsed = data[i].end();
    EXPECT_FALSE( node.parse( data[i].begin(), data[i].end(), last_parsed ) )
        << "Erroneously parsed: '" << data[i] << "'";
    EXPECT_EQ( string(), string( data[i].begin(), last_parsed ) );
  }
}

} //  end parser namespace
} //  end inc namespace
